QC Notes Electrical Inspector Part-2
Q41. Definition of NEC 400?
Answer : flexible cord ansd cable
Q42. Clearance between cable trays in Substation?
Answer : 2.67 meters
Q43. What kind of oil used in power transformer? Mineral insulating oil
Answer : Mineral insulating oil
Q44. What is Article 314? Outlet Device Pull and junction Boxes Conduit Bodies
Answer : Outlet Device Pull and junction Boxes Conduit Bodies
Q45. What is the material of drain and breather? Type 300 series stainless steel breather
Answer : Type 300 series stainless steel breather
Q46. What is the Percentage fill of conduit for more than 2 cables? 40 %
Answer : 0.4
Q47. Types of cathodic protection?
Answer : sacrificial anod system and impressed currentsystem
Q48. Substation building wall minimum fire rating.
Answer : 2 hours
Q49. Difference between battery cell installations.
Answer : 10mm
Q50. Which NEC article statues grounding procedure.
Answer : Article 250
Q51. RMC, PVC, IMC and HDPE are suitable for corrosive area when written
Answer : NEC 680
Q52. What is the space between strim drill resistance and anode resistance?
Answer :
Q53. Anode test pin?
Q54. RMC conduit support distance?
Answer : 900mm
Q55. Hospital and alternative electrical power source shall provide supply to essential services at the same site.
Answer : TRUE/FALSE
Q56. For field modification of cable tray bonding jumper will only be installed when cable tray is used as equipment grounding conductor?
Answer : TRUE/FALSE
Q57. Cable Tray Installation Guidelines
Answer : NEMA VE-2
Q58. What is Top Level of Water spillage?
Answer : see ebooks
Q59. What is the minimum Conduit size in SA Facilities?
Answer : 3/4″
Q60. Conduit fill percentage for more than 3 conductors
Answer : 0.4
Q61. The System for the cop’s loads shall be separate from the building management s/m. No single point failure shall be able to disable the_________s/m.
Answer : fire alarm and protectio system
Q62. Only secondary selective switchgear shall be used to
Answer : feed critical load
Q63. What is the meaning of over current?
Answer : over load
Q64. Circuit directory related one question?
Answer : schedle of load
Q65. Conduit Seals, Class I, Division 1. In Class I, Division 1 locations, conduit seals shall be located?
Answer : 0
Q66. Cathode design and approval?
Answer : CSD
Q67. Secondary-Selective: A switchgear assembly consisting of two buses connected with( bus tie breaker) Critical Loads: Are loads:
A): where a single contingency failure could cause a loss of power which would create an immediate hazard to human life.
b) Security systems.
c) Which cannot be shut-down for a minimum of five consecutive days? (annually)
Answer : all
Q68. 14 AWG control wire torque value. Conductor.
Torque Requirements
Control circuit devices with screw type pressure terminals used with 14 AWG or smaller copper conductors shall be torqued to a minimum
Answer : 0.8 N•m (7 lb-in.)
Q69. Where is mentioned conduit filling percentage.(CHAPTER9 TABLE-1)
Answer : (CHAPTER9 TABLE-1)
Q70. Aluminum conduit shall be provided with approved supplementary corrosion protection
where encased in concrete or in direct contact with the earth(TRUE/FALSE
Answer : FALSE
Q71. Fire control wire shall be protected by? 695.14
Electric Fire Pump Control Wiring Methods. All electric motor–driven fire pump control wiring shall be in rigid metal conduit
intermediate metal conduit, liquid tight flexible metal conduit, electrical metallic tubing, and liquid tight flexible nonmetallic conduit.
Answer : TRUE
Q72. Service Conductor with the Higher Voltage to Ground. On a 4-wire, delta-connected service where the midpoint of one phase winding is grounded,
the service conductor having the higher phase voltage to ground shall be durably and permanently marked by an outer finish that is orange in color,TRUE/FALSE
Answer : TRUE
Q73. Lamp holder for Incandescent lamp shall be marked to indicate the maximum allowable. VOLTAGE, WATTAGE, HZ, LUMENS.
Answer : VOLTAGE, WATTAGE
Q74. Rod, pipe, and plate electrodes shall be free from nonconductive coatings such as paint or enamel. OR shall be .welded, identified, listed, terminated.
Answer : welded, identified, listed, terminated
Q75. Test pin?
Answer :
Q76. Annex attachment D example modification and written authority to?
Answer :
Q77. Spray paint area below are permitted ?
I. Spray paint area barricades avoid to accident and fire
II. Ground all equipment in spray paint area.
III. Shall not permitted Qualified person.
• True or False
Answer :
Q78. When bends and fabrication are made in cable trays, Electrical continuity of the cable tray shall be maintained only if the cable tray is used as equipment grounding condutor ?
True or False
Answer : FALSE
Q79. Grounding cable depth?
Answer : 460
Q80. MC cable can be used As a single conductor?
Answer : yes
- ARAMCO :: CBT QA/QC – Instrumentation Inspector Qualification Guideline
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- CBT EXAM E-BOOKS
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- Electrical QC Notes of Saudi Aramco Qualification Guideline
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- Part-1 QC Notes Electrical Inspector Part-1 :: ARAMCO CBT